Absolutely no trouble locking mine back.OP: Something to be aware of, if you aren't---The Shields are harder to lock back than most guns. More so than my M&P 2.0 and maybe other brands of same size as the Shield.
If you have any grip issues. that is something to check in too. I am older with a lot of hand arthritis.
Maybe others can comment on the slide lock back being harder on this gun.
Loading and inserting mags, shooting and racking to load a round is no issue for me.
Just locking it back to break down and reassemble.
Do not believe everything you read on the internet.I am actually thinking about purchasing a Shield Plus too. I have a Shield 2.0 in 9mm that is a nice pistol. I have been a Glock shooter for a while now and carry a Glock most of the time. I am thinking about switching my carry gun to the Shield. I am reading a lot about the Shield Plus and I am reading about a number of problems like people having trouble removing the slide, trigger safety too loose, magazines binding so they can't be fully loaded etc. I would really like to hear from some folks that like their Shield Plus and are not having trouble with it. I hope someone out there finds it to be a good solid pistol.
I hate to come off the wrong way, but you can just tell by reading some of these bad reports, and not just about the Shield Plus either, that a good many of them are because somebody doesn't know what they're doing.Do not believe everything you read on the internet.